Chuck



FIG. 1 is an isometric view of the chuck showing our new design;

FIG. 2 is left side elevation view thereof, of which the opposing rightside, adjacent front, and adjacent rear elevation views are identicalthereto; and,

FIG. 3 is a top plan view thereof.

The broken lines in the drawings illustrate portions of the chuck thatform no part of the claimed design.

CLAIM The ornamental design for a chuck, as shown and described.